<template>
  <div>
    <h1>1211321</h1>
    <button @click="handleClick">点击</button>
  </div>
</template>

<script setup>
function handleClick() {
  b + 1;
  // return new Promise((resolve, reject) => {
  //   reject(12111);
  // });
}
</script>

<style lang="scss" scoped>
</style>